请求领导批准的英文邮件怎么写

请求领导批准的英文邮件范文

Dear Sir,

I'd like to install WIN7 system for working purpose. The IT department required me to get your permission. Waiting for your approvement.

Tks gds.

翻译：亲爱的先生，我想安装 win7系统。部门要求我得到你的许可。等待你的批准 tks rgds。